Needle-bar for self-binders.



PATENTED JUNE 23, 1903.

APPLICATION FILED MAR. 10, 1902.

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' T. E. LIND.

NEEDLE'BAR FOR SELF BINDERS. APPLICATION rnnn MAR. 10, 1902.

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No. 731,796. PATENTED JUNE 23, 1903.

T. E. LIND.

NEEDLE BAR FOR SELF BINDERS.

V AYPLIOATION nLnn MAR. 10, 1902. 10 10mm. a sums-Bum 3.

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PATENT iatented June 23, 1903.

OFFICE.

'TRUED E. LIND, or MONSON, MINNESOTA.

\ NEEDLE-BAR FOR SELF-BINDERS.

SPECIFICATION forming part of Letters Patent No. 731,796, dated June 23,1903. Application filed March 10,1902. Serial No. 97,486. (No model.)

approach of the grain to the packer-arms and frequently holds it back tosuch an extent as to cause the wedging of the grain between the deck andbreast-plate, where it cannot be reached by the packer-arms, andnecessitatin g the stopping of the machine until the grain so wedged hasbeen removed. Obviously this clogging of the grain delays the operationof the machine, and even if the grain does not become clogged it issufficiently retarded by the returning needle-bar to prevent continuousdelivery to the packer-arms and the rapid formation of the bundles.

The object, therefore, of my invention is to provide a needle-bar whichonits return'stroke after a bundle has been bound will not in any wayinterfere with or retard the approaching grain.

The invention consists generally in various constructions andcombinations, all as here- I inafter describechand tion of thesame onthe line as as.

particularly pointed out in the claims.

In theaccompanyin g drawings, forming part of thissp'ecification, Figure1 is a side elevation of a portion of a grain-binder with my inventionapplied thereto. Fig. 2 is a plan sec- Fig. 3 is a View showing theposition of the means for supporting the needle-bar, the variouspositions assumed by the same being indicated by dotted lines. Figs. 4and 5 are side and plan views, respectively, of the carriage on whichthe needle-bar is pivoted.

Fig. 6 is a view corresponding to Fig. 3, showing a modified Fig. 7 is aplan view of a needle-bar and a portion of its connections.

In the drawings, 2 and 3 represent portions of the binder frame, 4 thegrain-deck, having a slot 5, 6 the breast-1:)late,w7 thebundle-discharge arms,8 the bundle-guides; 9 the knotis secured on thepacker-shaft. .29 is connected by a chain 33 with a similar ter, and 10the compressor, allof the ordinary construction.

11 is the packer-shaft, provided with cranks 12, whereon the packer-armsare mounted. Upon the packer-shaft is a gear 13, connected through agear 14, sprocket 15, and chain 16. and with a sprocket 17, providedwith a cam 18. An arm 19 is pivoted upon the frame, carrying a roller20, that is adapted to travel over said cam, and said arm is connectedwith a tube 21, wherein a spring 22 is arranged on a rod 23, that isconnected at its lower end to an arm 24, provided upona hub 25. This hubis mounted upon the compressor-shaft 26 and is provided with a long arm.27, "that is adapted to be moved when the compressor has been operatedby the pressure of the grain out of the path of a pawl 28, pivoted .011a sprocket 29 and provided with a lug 30, which when said pawl isoperated is moved into the path of rollers 31, provided on a cross-head32, that The sprocket sprocket 3st 011 a short shaft 35, that ispivotally connected with the needle-bar 36 by a crank 37.

The construction heretofore described, eX- cept that relating to theneedle-bar and its connections, is employed in self-binders generally,and I make no claim to the sameherein.

Between the parts of the frame 2 and 3 I provide parallel bars 38, andbetween said bars I provide plates 39, connected by a pin 40, whereonthe needle-bar is pivoted. Upon the outside face of each plate 39 Iprovide two rows of hollow faced wheels 41, that are adapted to bearupon the upper and under side of the rods 38 and holding the plates 39,which form a carriage whenconnected together, securely in position,while permitting them to travel freely back and forth upon the bars 38.One end of the cord is connected to the knotter, as shown in Fig. 3, andextends down to the needle and through a loop 42 on one ofthe bars 38.As soon as a bundle has been formed and the compressor actuated by thepressure of the grain thereon the needlebar will be operated and thebundle bound in the usual Way. On the return stroke of the bar insteadof swinging back against the incoming grain and retarding the approachof the same toward the packer-arms its pivoted end will slide along thebars 38, as indicated by dotted lines in Fig. 3, and the freeend of theneedle, or that portion that is projected beyond the grain-deck, will bedrawn directly back and will be below the floor of the deck by the timethe grain for the succeeding bundle is engaged by the packer-arms, andthis movement will be repeated with each bundle that is bound.

I11 Figs. 6 and 7 I have shown a modification of the needle-bar, whichconsists in pivoting a link 43 to the end of the bar, saidlink beingmounted on a stud 44, that is pivoted on the under side of thegrain-deck. The manner of operating this needle-bar is substantially thesame as that heretofore described,

the various positions assumed by the bar in its return movement beingindicated by dotted lines.

The form of packer-arm shown in Fig. 3 is adapted to slide with itssupport to permit the withdrawal of the bar lengthwise after the bundleis bound, and the movement of the bar in Fig. 6 is similar, except thatit is connected by a link with a fixed pivot and has a folding actionwhile being withdrawn out of the path of the incoming grain. I prefer touse the construction shown in Fig. 3, but the other can be adapted toperform the same functions and in some instances may be a more desirableconstruction to adopt. In both cases the needle-bar will be withdrawnout of the path of the approaching grain, which will not be retarded inits delivery to the packer-- those that are already in use.

I=Yclaim as my invention- 1. In a self-binder, the combination, with asliding. carriage, of a needle bar pivoted thereon, a knotter, means formoving the E point of said bar toward the knotter to bind the bundle andfor sliding said carriage to withdraw said point in a substantiallydirect line from said knotter and nearer said cari riage than the pathof said point toward the 3. In a self-binder, the combination, withagrain-deck and a knotter arranged above the same, of a sliding carriageprovided beneath said deck, a needle-bar pivotally supported on saidcarriage, and a crank mechanism having a pivotal connection with saidbar near v said carriage.

4. In a self-binder, the combination, with the grain-deck and a knotterarranged above the same, of a carriage slidably supported beneath saiddeck, a needle-bar pivoted on said carriage and operating through saiddeck toward and from said knotter, and means connected with said bar forswinging its point toward said knotter to bind the bundle andwithdrawing or retracting said point in a substantially direct line fromsaid knotter, said direct line being inside the path of said pointtoward the knotter, whereby interference of the point and bar with theincoming grain of the succeeding bundle is avoided.

5. In a self-binder, the combination, of a knotter, with a needle-bar, asliding support whereon said needle-bar is pivoted, bars upon which saidsliding support is mounted, a shaft and a crank provided thereon andhaving a pivotal connection with said needle-bar near said slidingsupport.

6. The combination, of a grain-deck and a knotter, with a needle-baroperating through the floor of said deck toward and from said knotter,bars horizontally arranged beneath 'said deck, a sliding carriagemounted upon said bars and whereon said needle-bar is pivoted, a shaft,and a crank thereon pivotally connected with said needle-bar near saidcarriage.

In'witness whereof I have hereunto set my .hand this 5th day of March,1902.

' TRUED E. LIND;

In presence of EDWARD RUSTAD,

W. W. DAVIS.

